Curb inlet casting



March 14,1950 DE wr'rf s. cR'ocKER 23,205

CURB INLET CASTING Original Filed June 14, 1945 n INVENTOR I BY ATTORNEY Reissued Mar. 14, 1950 l: r Re,

CURB INLET CASTING.

De Witt Saxton Cracker, Springfield Gardens, N. Y.

Original No. 2,473,279, dated June 14, 1949, Se-

rial No. 599,415,'. June 14, 1945. Application for reissue September 24, 1949, Serial No. 117,521

6 Claims. (01. 182-6) Matter enclosed in heavy brackets appears in the original patent but forms no part of thi reissue specification; matter printed in italics indicates the additions made by reissue This invention relates to curb inlets for catch basins for road drainage. g

Such inlets are provided by incorporating into the curb which separates the elevated sidewalk from the road, a casting which opens the road gutter to a catch or drainage concrete lined basin which underlies the sidewalk. The casting is held in position by being bonded to they immediately adjacent portions of such construction. Experience has proven that this bond is an element of weakness in that it breaks readily and permits the casting to move away from the sections to which it has been bonded. It is not an unusual occurrence for the casting to project outwardly beyond the curb as much as 4",.to present a hazardous obstruction to trafilc. I attribute this weakness to the peculiarity that the concrete sections to which the casting is bonded do not contract as fully as they expand. This explains the gradual decrease in the width of the separating spaces generally provided between sectionsof a roadbed for expansion, until the space closes and any further expansion of the roadbed sections will cause the road to break up. Thisxis a major determining factor in the life of the roadbed.

It is this peculiarity in the contraction and expansion of the sections, coupled with the fact that the curb inlet casting tends not'to' follow the contraction and expansion of thesections to which it is bonded or secured, which in my opinion destroys this bond so that the curb requires frequent rebuilding and the casting resetting during the life of the road, with the consequent inconvenience and increase in road maintenance cost.

The general object of my invention is a novel provision for preventing the separation of; the curb inlet casting from the catch basin wall structure.

Another object of my invention is a novel-provision for so securing the cunb inlet. castingsto the catch basin wall structure that the inlet cast-' ing will move therewith as the wall structure expands and contracts with temperature changes and will remain fixedly bonded thereto and inseparable therefrom as long as the wall structure maintains its integrity.

For the attainment of these objects and such other objects as will be hereinafter pointed out,

I have illustrated embodiments of my invention.

in the drawings, wherein: I

Fig. 1 is a cross-section through a catch basin, the sidewalk which it underlies. and the adjacent on an enlarged scale;

Fig. 2 is a section taken on line 2-2 of Fig. 1,

Fig. 3 is a perspective of the curb inlet casting of Figs. 1 and 2;

Fig. 4 is a perspective, on an enlarged scale, of the one end of the curb casting inlet of Fig. 3; and

Fig. 5 shows a modification.

Upon reference to Fig. 1, it will be observed that I here show a transverse cross-section through the gutter slab and the adjacent sidewalk II which overlies the catch or drainage basinv I 2 whose front and back and side walls are numbered l3, I4, l5 and I6, respectively, and whose bottom is numbered l8. Access to basin l2 may be had through a sidewalk openingclosed by manhole cover I9. The inner portion of the gutter slab 20 tapers to provide a gutter 22 into which the water drains from the roadway and along which it flows to the curb inlet and from there into the basin I2.

The curb inlet casting is shown as comprising a front wall and a bottom 3|. The front wall. 3!! is provided with relatively large openings 32 across its length, separated by relatively narrow partitions 33 to provide maximum drainage clear-- ance therethr'ough. The partitions are extended. rearwardly to form end walls 35 and 36 and thetriangular fins 31 which define a plurality of passageways whose effect is to distribute the road.

water across the width of the basin l 2. The fins: 3i and the end walls 35 and 35 are shown for illustrative purposes, as all of the same dimensions and contours and as integral with the bottom 3! for its full depth. The front wall extends below 'of the front face.

I provide the end walls 35 and 36 of the casting of Fig. 3 with [the outwardly extending and vertically elongated flanges 40, approximately 6" long and positioned centrally of the height and :."-als"o of the depth of these walls] a pair of protuberanc'es 40, 40 extending outwardly and generally longitudinally of the casting. The protuberances 40, 40 have a vertical dimension substantially centered at the juncture of the side "walls 15, 16 and sidewalk slab 11 of the catch basin with the lower portions of protuberances 40, 40 embedded in said side walls 15, 1b and with the upper portions of the protuberances embedded in'sa id sidewalk slab 11.

I will now briefly set forth the" functioning of vaiaemnaui a ds on rd figtoqctliem 1 areas; andmxeavatinsafon the wh ms-drainage; V

basins IL; thee inlet "casting oft Elsa: 3% is snse pended across the front of an excavation, from the subgrade to the sides thereof, with the bottom. s

of the casting held approximately on the level;v with the sub-grade.

l3, l4, I5, l6 and I8 as showninFig. 1. Thefron wall is poured to the level of the bgtton ofthe. v casting, i. e., the sub-grade;levelgwhereas:

other three walls are poured appitnximatelygto thes level of the finished road surface which is 6" above the sub-grade and also the bottom oi -the:- casting. As a result, the front wall, 3 will engage andbo'nd to the bottom? of the castim; andjthe; side walls l5 and' I6 will" engage the side walls 35 and 36 thereof approximately to the horizontal level cit the apicesjQ of these sidewalls ,and will embrace the lower half of the.- mangesLgrqtuZj -a. ances, ,40.

Concrete or similar material is thenipouredigfgr the sidewalk. H which engages. andtoverlies the with the curb castingto ,close the basinaexceptfhr the aforementioned;fiiontopeningsl32., ltihasgalready, beenpointedj out thats'the side wall's l 5; and

Concrete is then tbtline the basin with concrete 4 ally, the curb inletcasting is bonded thereto and is preventedv from moving relative to the catch basin; .It willig he underatood Lemploy' both uss'limwh ca aW'whicmprmeat out- I wardly and oppositely from the side walls 35 and 36 nd also the loop 60 where the walls are all d ,in which event the bond between thecurb casting and the adjacent walls will be ;td-tl 1at'extent.

" whatfl claim as new and desire to secure by inletieasting comprising, a base, end walls extendlngi unwa rdlyz from the ends and trans- 5; versely ofitlie lengthof the base to form the end wailsiofi ijthe casting, the outer faces of said end s fprmingsthe end faces of. the ;casting spaced nartit te d n nw ml fr the-base transversely 'ofits length to define a ms rality of passageways intermediate the end walls I m drain.water frommheroadugutter, into a basin beneath the sidewalk, a fl'angerextcn l 'uunwaxily fro ns and connectihg thehuppeh endsof partitiollg W I-1 i fllendmwalls the. height? oft V 5 th flange being substantially greater than the tops of; thewthree side walls.- I4', I55, and; lli apd thickness of; the..;base, thetfi ontjfaces of the par;- tition andiendjwallss andthabase being in a v come mom planeand, defining the front" face ,of' the: casting verticallugsextendingglaterally outward:

Hi werepouredflto a.-horizonta l leyel.ofappr0xi=-+ lyyffrom the endgfacea of. the casting the lllgs matelv the apices 39 of the -triangular-lsy fbrmedl; It: thereforpw follows thatv the coneretevor. similar material?" which is poured tolformthasidewalk IL willf en-s rearwardl'y extending; partitions.-

gage the outer side; facesofjtheg-endlwalls 35f andi.

36; of the. casting and; also the; ream and faces of the portion 30;, of. the front .walliflflhihz is above its-openings; Ih-thisuoperation the upper half of, the outwardly, extending; [lugsmna beihg locatedito.thereari-ofi'and;helcw'saidflange" and. aboae the base. whereby; the concrete, can be; pgnr edl fon, the basin; andthe,sidewalk by, first:

pour g the basi'nto a levell-whi'chis intermediate n topsandj bottom of,the lugs andthereafter pg ng thesidewallefslabs'tothat level.-

2 Ajcasting' as; set" forth in" clairrr 1, wherein" the partitionandf end walls are extended'iear wag dly; beyond the" rear end" of said base; said" fiangeslprotubemnces All will be imbedded into4wwalljextensionsfbeing ofa-length'no'greater that and thus bonded to. the sidewalkslah.

As vairesrult of. this. arrangement; theecastingjs so, bonded to the side, walls l5i.and- IBXand' thee;

sidewalk H by the, [flangeslprotuberancex 401 that any movementoffl thatendpi these wallsxgor; the sidewalk in. contracting or;

carry the casting; with it; Thez castiiig'siis'thuszi.

retained. against separation-1. therefrom notwithe standing, the: aforementioned; peculiarity instlieg expansion andcontraction.of jthesegsections Th lifev of the bond between; the, curb inlet. castin and the, adjacent wall sections isthus; increasedi probably to a longevity equal to that of.1 the ,roadi.. itself jandlthecafor emcntionedinconizeniences increased'cost iof roadmaintenancexliminated;

[The above procedure. presupposes; that the;

walls [3,. L4,. l51and llisarewpouned'smthat the";

bonding. is effectedas, the :concretet sets It however, .an: occasional practice;.to, .build; someyo these sections of preformed blocks, .in whichz even Qsdrain water from the road gutter into the basin);

I preferto use the alternativearrangementshown in ,Figs 5,0f the drawings, wherein; looped; on; v

the-gdistance. between; the top of -the baseand' the,

bottom" off-the flange; and being located* therebetweenand'said =lugs 'extending laterally outwardlyf'ron'rssaid extension: of said end. walls.

byntl ieafiangesbeeomess thesf'ront; facing-glforz' thessidemalksslahi;

'llhgrcmnblnatiomofgsa-e gutter draintbasin, an

sillerslabf: andzaniinletzcasting, said: inlet; casts ing-gecomprising aabasegq endlzwallsaextendingi 11111 fmmethe, endsg lofa 'and.1 transverselysof; the; length:v ofstheibasetoyfomrnthe end wallsa of the:

i -casting}. theaouterr faces :01: saidl endswallsrformw- "inggthe end faces of the casting, spaced apart-i.

partition wallsextendingrupwardly-from: the bases tmnsverselm; of: its: length; tomdefine a; plurality oi passageways-a". intermediate; the; ends walls !to? giwtersthamthes thickness of. the-base; v the: front;v

When the sidewalls-riSs-pQu Bdaone -otithe itein -jflif'aaesa-ofzthe partition andend walls'andtthel forcing; rods. 6 In which are generally;

therein is--. hentl through the or; lopptlli ll 'asgi shqwn in}. this fieure sq .that thevcasting is thusi; bonded to the sidewalk section];

Asia result of; the, embedd'f 51,015 thespratulie ajzcesw40 40, in the .sidelwgllssaz d sidewalk; S1 oj,- thc catch: basinas;descrihedijabmzei t ti'ze jmnt. wall. oj the catch 1i united together, so tnatsazr m fdi base" and base being in eing: located to! the rear, of

bottannioiizthe Jugs-andrthegsidewalktslabsspour fi seahevezt the: ev l; v01 the: ton: of the; suttem 3%. mlcastingi as set' vforthxinrclaim 2 iwhereinzlthesw commo'm planeand; definingthe frmit face pfjthe casting-, vertical lugs n extendingg laterally outwardly fromuthetend faces of the;-

5. In a road drainage catch basin, in combination, a pair of side walls defining the lateral limits of the catch basin, a front wall presenting its upper edge substantially level with the road sub-grade, a sidewalk slab integral with said side walls to cover the catch basin, and a curb inlet casting having a base which is disposed at the, upper edge of said front wall of the catch, basin and a pair of end walls the lower portions of which i all? of the catch basin and the upper portions of which are disposed within said sidewalk slab,

are disposed at the inner surface of the side walls said casting having a pair of protuberances ea:- tending outwardly and generally longitudinally from both said end walls of the casting, said protuberances having a vertical dimension substantially centered at the juncture of said side walls and sidewalk slab of the catch basin with the, lower portion thereof embedded in said side walls: of the catch basin and with the upperlfportion thereof embedded in said sidewalk slab, whereby said side walls of the catch basin together with its said front wall and said sidewalk s'lab are united and bonded by said protuberances 0f the curb inlet casting to prevent a diflerentialin the expansion and contraction of saidside and front walls and said sidewalk slab of the catch basin and to prevent movement of the curb inlet casting eel tive to said walls and slab of the catch basin;

g; ismEmiNoEs CITED 5 The folloizsitf g references are'of record in the file of this patent ol the original patent:

UNTIEDQSTATES PATENTS Number Name Date 459,259 Shunk Sept. 8, 1891 634,011 Mahony Oct. 3, 1899 1,654,246 Egan Dec. 27, 1927 2,242,192 Gordon May 13, 1941 

